How do mrsa bacteria specifically exhibit resistance to antibiotics? they produce b-lactamase, an enzyme that destroys penicillins they evade the antibiotic molecules by evading binding with antibodies they produce methicillin, which inactivates penicillin they produce endotoxin, which inactivates antibodies

the expression of an enzyme (the PC1 β-lactamase) capable of hydrolyzing the β-lactam ring and the acquisition of a gene encoding a modified penicillin-binding protein

Explanation:

Staphylococci have two primary mechanisms for resistance to β-lactam antibiotics: the expression of an enzyme (the PC1 β-lactamase) capable of hydrolyzing the β-lactam ring, thus rendering the antibiotic inactive, and the acquisition of a gene encoding a modified penicillin-binding protein (PBP), known as PBP 2a, found in MRSA and coagulase-negative staphylococci. PBP 2a is intrinsically resistant to inhibition by β-lactams

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